Implicit PID self-tuning controller and its applications

An implicit Pm self-tuning control algorithm is presented for an intermittently operated chemical reactor in a chemical plant, which is difficult to control with model set up. Getting rid of so much troubles in rounding up the parameters of conventional PID algorithm and so long time to be spent, the algorithm can implement the real-time on-line identification for controlled objects with self-tuning function provided for Pm controller parameters. Also, the algorithm shows relatively strong robustness via simulation. Therefore,it is available in practice.